Cooling attachment for internal-combustion engines.



` PATENTED OOT. 13, 190s. I. W. SUTTON. OOOLING -ATTNOHMENT EOE INTERNALOOMBUSTION ENGINES.

APPLICATION FILED NOV. 22, 1902.

l No MODEL.

' tutti) STATES Patented October 13, 1903.

.artnr prima,

JOHN YV. SUTTON, OF NEW YORK, N. Y.

SPECIFICATION forming part of VLetters Patent No. 741,419, dated October13, 1903.

Application led November 22,1902. Serial No. 132,360. (No model.)

To a/ZZ wwnt t may concern:

Beit known that I, JOHN W. SUTTON, acitizen of the United States,residing in New York, borough of Brooklyn and State of New York, haveinvented certain new and useful Improvements in Cooling Attachments forInternal-Combustion Engines, of which the following is a specification.

This invention relates to certain improvements in cooling attachmentsfor internalcoinbustion engines of that class which are employed inmotor-cycles', automobiles, and similar vehicles, the cooling attachmentbeing so arranged as to supply a continuous current of atmospheric airto the interior of the piston and cylinder and to the exterior surfaceof the cylinder, so as to exert an ef- .fective cooling action on theheated parts Without carrying along any particles ot' lubrieating-oilsupplied to the moving parts by which the heat-radiating ribs areclogged and a disagreeable smell caused by the heating of the oil, andfor this purpose the invention consists of an internal-combustionengine, the crank-case of which is provided with openings, a fan rotatediu connection with the crank-shaft of the motor, a channel connectingsaid fan-casing With a hood extending around the head and exteriorportion of the cylinder, and an auxiliary channel for conducting anair-current to the interior of the piston and cylinder, so thatcontinuous currents of air are supplied to the interior and exteriorsurfaces of the cylinder.

The invention consists further in diametrical delecting-plates on` theconnecting-rod of the piston below the wrist-pin of the same or attachedto the inside of the piston on each side of the connecting-rod, saiddeiecting-plates being arranged at right angles to the direction ot thecurrent, so as to'detlect the current into the piston and cylinder andthen through the crank-case to the atmosphere.

The invention consists further of certain details of construction andcombinations of parts, which will be fully described hereinafter andfinally pointed out in the claims.

In the accompanying drawings, Figure 1 represents a side elevation of aninternalcombustion motor with my improved cooling attachment. Fig. 2 isa plan View of Fig. 1.

Fig. 3 is a side elevation, partly in vertical section, of a modifiedform ot cooling attachment. Fig. 4 is a detail side view of thecylinder, showing the detlectorplates on the connecting-rod of thepiston; and Fig. 5 is a detail side view of the cylinder, showing thedetlector-plates attached to the interior ofthe piston.

Similar letters of reference indicate corre-A spending parts. Referringto the drawings, A represents the crank-case of an internal-combustionengine of that type which is used for motor-cycles, automobiles, andsimilar vehicles. The lower part of the crank-case is made cylindrical,While the upper part is made tapering toward the cylinder. The cylinderand the head of the combustion-chamber is provided on its exteriorsurface with heat radiating ribs, plates, or tins that serve todissipate the heat of combustion,said heat-radiating devices beinginclosed by a hood H, which is connected at the upper end by a tubularchannel C with the casing F of a fan F, said fan receiving rotary motionfrom the ily-wheel F2 of the motor by a suitable belt-and-pulleyftransmission, as shown clearly in Figs. l and The crank-shaft issupported in suitable bearings of the crank-case and connected by aconnecting-rod with the transverse Wrist-pin at the interior of thehollow piston D. The crankcase is provided with openings M atdiametrically opposite points at the point of connection of thecrank-case with the cylinder and alongside of one of the openings with adelector E, so that theV air that is forced down in the hood H over theheat-dissipating ribs, plates, or fins is conducted to the interior ofthe cylinder and piston and out to the opposite side of the cylinder byarranging on the connecting rod or piston at opposite sides of the samedeiiecting-plates g g,which are made of light sheet metal, saiddeflecting-plates deilecting the current of airiirst in upward directionto the interior of the cylinder and piston and then in downwarddirection tothe outlet-opening M of the crank-case to the atmosphere.

In place of arranging the outlet-opening at the Lipper part of thecrank-case the same may be arranged at the central part of the sameconcentrically to the crank-shaft, as

IOO

shown in Fig. 3, in which case an auxiliary or branch channel C isarranged that connects the main channel C With the opening M at the baseof the cylinder, so that the second air-current is conducted along thedeiiectingplates of the connecting rod orpiston around the interior ofthe piston and to the opposite side of the same into the crank-case andout through the central opening N of the same. The deiiecting-plates g,arranged at opposite sides of the connecting-rod, are made as Wide aspermitted by the available space at the interior of the cylinder, so asto move With the connecting-rod Without interfering with the interior ofthe crank-case and cylinder during the np-and-down motion of the rod.The deflecting-plates may also be attached to the interior of thepiston, one on each side of the connecting-rod, so as to permit the sameto pass between the plates Without interference. Fitting the plates onthe piston offers the advantage of not closing the openings athalfstroke of the crank.

The constructions shown in the drawings have the advantage that acontinuous current of air is supplied to the exterior of the cylinderand a separate air-current to the interior of the piston and cylinder,so as to produce the effective cooling of the cylinder at its exteriorand interiorsurfaces and the cooling of the piston at its interiorsurface Without carrying along any of the particles of lubricating-oilthat are supplied to the moving parts and sometimes splashed around theinterior of the crank-case and which when entrained in the air-currentssettle on the dissipating ribs, plates, or tins and produce by thedrying or oxidation of the same by the heated surfaces a disagreeablesmell. This is entirely prevented by the air-currents deflected by theplates on the connecting-rod, while a very effective cooling action onthe exterior and interior heated parts is produced.

Having thus described my invention, I claim as new and desire to secureby Letters Patentl. The combination, with a crank-case, cylinder andpiston of an internal-combustion engine, of means for supplying acurrent of air to the interior and exterior of the cylinder 5o and headfor cooling the same, inlet-openings in the crank-case for the currentof air, and detlecting-plates on the connecting-rod for detiecting thecurrent of air to the interior of the piston for cooling the same,substantially as set forth.

2. The combination, with the crank-case,

lcylinder and piston of an internal-combustion engine, of a hoodsurrounding the cylinder and head of the combustion-chamber, aVentilating-fan rotated by the fly-Wheel of the engine, a fau-case, achannel connecting the fan-case with the upper end of the hood, meansfor supplying an air-current to the interior-of the cylinder and piston,and defiecting plates or fins attached to the connectingrod and adaptedto deflect the interior aircurrent over the interior surface of thecylinder and piston to an outlet-opening in the crank-case,substantially as set forth.

3. The combination, with the crank-case, cylinder and piston of an'internal-combustion engine, of a {1y-Wheel on the crank-shaft of saidengine, a fan operated by said iiy- Wheel, a hood surrounding thecylinder and head of the combustion-chamber, a channel connecting thefan-case with said hood, heatradiating devices on the exterior surfacesof the cylinder and head, deiecting plates or ns attached to theconnecting-rod of the piston at rightangles to the air-current deliveredinto the interior of the cylinder, means forconducting an air-currentthrough an open-

